| Addison to Orangevale (California) | 1,753.09 mi (2,821.32 km) |
| Addison to Orchards (Washington) | 1,727.05 mi (2,779.43 km) |
| Addison to Orcutt (California) | 1,809.73 mi (2,912.47 km) |
| Addison to Oregon (Ohio) | 236.51 mi (380.62 km) |
| Addison to Oregon (Wisconsin) | 98.36 mi (158.29 km) |
| Addison to Oregon City (Oregon) | 1,731.80 mi (2,787.07 km) |
| Addison to Orem (Utah) | 1,234.42 mi (1,986.60 km) |
| Addison to Orinda (California) | 1,820.29 mi (2,929.47 km) |
| Addison to Orland Park (Illinois) | 23.61 mi (38.00 km) |
| Addison to Orlando (Florida) | 1,002.15 mi (1,612.80 km) |
| Addison to Ormond Beach (Florida) | 954.34 mi (1,535.86 km) |
| Addison to Oro Valley (Arizona) | 1,418.70 mi (2,283.18 km) |
| Addison to Oroville (California) | 1,754.02 mi (2,822.82 km) |
| Addison to Oshkosh (Wisconsin) | 147.18 mi (236.87 km) |
| Addison to Oskaloosa (Iowa) | 243.28 mi (391.53 km) |
